JP2004291790A - Airbag for rear seat, and airbag device for rear seat - Google Patents

Airbag for rear seat, and airbag device for rear seat Download PDF

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Publication number
JP2004291790A
JP2004291790A JP2003086041A JP2003086041A JP2004291790A JP 2004291790 A JP2004291790 A JP 2004291790A JP 2003086041 A JP2003086041 A JP 2003086041A JP 2003086041 A JP2003086041 A JP 2003086041A JP 2004291790 A JP2004291790 A JP 2004291790A
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Prior art keywords
seat
airbag
floor
rear seat
front seat
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JP2003086041A
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JP4180415B2 (en
Inventor
Hiroyuki Kobayashi
裕之 小林
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Toyoda Gosei Co Ltd
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Toyoda Gosei Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To effectively protect knees and lower portions thereof, mainly foot tips of occupants seated in a rear seat. <P>SOLUTION: In the airbag device for the rear seat, an airbag 16 which is developed and inflated between a front seat 11 and a rear seat 15 is stored in a case 13 of an airbag module 10 fixed to a lower side of a seat part 12 of the front seat 11. The airbag 16 comprises an upper inflation part 22 which is developed and inflated along a back rest part 21 of the front seat 11, a lower inflation part 23 to cover a space between the seat part 12 and a floor F. A support guide 24 to support a front face 23a of the lower inflation part 23 is provided on a lower side of the case 13 between the seat part 12 and the floor F. The lower inflation part 23 is brought into contact with the floor F. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【０００１】
【発明の属する技術分野】
本発明は、衝突等による衝撃が車両に加わったときに、後席乗員の膝下の部位を保護する後席用エアバッグ装置に関するものである。なお、本明細書において「前席」とは、後方に他の席がある席を意味し、運転席及び助手席に限らない。また、「後席」は、「前席」の後にある席を意味する。
【０００２】
【従来の技術】
従来のこの種の後席用エアバッグ装置としては、前席のシートベースフレームに設けられたエアバッグモジュールから、後席乗員に向かってエアバッグが展開するものがある。このエアバッグは、前席背もたれ部の後方において背もたれ部の背面に沿って上方に展開し、次いで、後席乗員の胸部あるいは頭部の前方で展開する（特許文献１参照。）。
【０００３】
【特許文献１】
特表２００２−５４２１００号公報
【０００４】
【発明が解決しようとする課題】
ところで、後席乗員がシートベルトを適正な姿勢で装着していなかったときには、車両の衝突時に後席乗員の腰から下の部分がもぐり込むようにして前方に移動するいわゆるサブマリン現象や、膝下や足先が前席の座部と車室フロアとの間の空間に入り込む可能性がある。
【０００５】
一方、上記特許文献１に記載の後席用エアバッグ装置は、エアバッグモジュールから展開するエアバッグが、前席の背もたれ部の背面側と、後席乗員の胸部あるいは頭部の前方で展開するのみであるため、後席乗員の膝下、特に足先を保護することができなかった。
【０００６】
本発明は、上記課題を解決するためになされたものであって、その目的は、後席乗員の膝下、主として足先を有効に保護することができるエアバッグ及びエアバッグ装置を提供することにある。
【０００７】
【課題を解決するための手段】
上記目的を達成するため、請求項１に記載の発明は、前席の座部とフロアとの間において展開膨張することを要旨とするものである。
【０００８】
請求項１に記載の発明によれば、前席の座部とフロアとの間において展開膨張したエアバッグにより、後席乗員の膝下、主として足先が有効に保護される。
請求項２に記載の発明は、前席の座部又は座部の下側に設けられ、前席と後席との間において展開膨張するエアバッグであって、前記前席の座部とフロアとの間の空間を塞ぐ膨張部を設けたことを要旨とするものである。
【０００９】
請求項２に記載の発明によれば、前席の座部とフロアとの間の空間を塞ぐ膨張部によって、後席乗員の膝下、主として足先が有効に保護される。
請求項３に記載の発明は、前席の座部又は座部の下側に設けられ、前席と後席との間において展開膨張する後席用エアバッグであって、前記前席の背もたれ部に沿って展開膨張する上部膨張部と、前記前席の座部とフロアとの間の空間を塞ぐ下部膨張部とを設けたことを要旨とするものである。
【００１０】
請求項３に記載の発明によれば、前席の背もたれ部に沿って展開膨張する上部膨張部によって後席乗員の膝及び膝下が保護され、また、前席の座部とフロアとの間の空間を塞ぐ膨張部によって後席乗員の膝下、主として足先が有効に保護される。
【００１１】
請求項４に記載の発明は、請求項３に記載の発明において、前記下部膨張部がフロアに接触するように構成したことを要旨とするものである。
請求項４に記載の発明によれば、請求項３に記載の発明の作用に加えて、前席の座部とフロアとの間の空間を確実に塞ぐことができるとともに、下部膨張部とフロアとの接触を反力として、上部膨張部を前席の背もたれ部に沿って上方へ展開させることができる。
【００１２】
請求項５に記載の発明は、請求項１〜請求項４のいずれか一項に記載の発明において、全体が扁平状をなすように構成したことを要旨とするものである。
請求項５に記載の発明によれば、請求項１〜請求項４のいずれか一項に記載の発明の作用に加えて、規制手段によりエアバッグ全体が扁平状に展開膨張するので、エアバッグが後席乗員の膝下を強圧することがなく、膝下と前席との間を埋めるようにして、膝下を有効に保護する。
【００１３】
請求項６に記載の発明は、請求項１〜請求項５のいずれか一項に記載の後席用エアバッグの展開膨張時に、座部とフロアとの間においてエアバッグの前面を支持する支持部材が設けられていることを要旨とするものである。
【００１４】
請求項６に記載の発明によれば、前席の座部とフロアとの間においてエアバッグの前面が支持部材に支持されるので、請求項１〜請求項５のいずれか一項に記載の後席用エアバッグをほぼ上方に向かうように展開膨張させることができる。従って、エアバッグを、前席の背もたれ部の背面に沿って展開膨張させることができるので、後席乗員の膝下等を有効に保護できる。しかも、支持部材により、エアバッグが前席座部とフロアとの間の空間前方に移動することが防止され、足先がいっそう有効に保護される。
【００１５】
請求項７に記載の発明は、請求項６に記載の発明において、前記座部の下部に前記エアバッグを収容するケースを設け、前記支持部材がケースに設けられていることを要旨とするものである。
【００１６】
請求項７に記載の発明によれば、請求項６に記載の発明の作用に加えて、支持部材がエアバッグモジュールに設けられた状態で提供されるので、車両への組み付けが容易となる。
【００１７】
【発明の実施の形態】
以下、本発明を具体化した実施形態を図１〜図５に従って説明する。
図２に示すように、エアバッグ装置としてのエアバッグモジュール１０は、車両における前席１１の座部１２の下面に固定されている。
【００１８】
図３に示すように、エアバッグモジュール１０は、座部１２に固定されたケース１３、ケース１３内に収容されたインフレータ１４、ケース１３に収容されるとともにインフレータ１４が供給するガスによって前席１１と後席１５との間で展開膨張するエアバッグ１６を備えている。
【００１９】
図４に示すように、ケース１３は、後席１５側に向いた開口部１７を有し、この開口部１７から折り畳み状態のエアバッグ１６を後席１５側に展開させるようになっている。開口部１７は、エアバッグ１６の展開時にティアライン１８ａ，１８ｂで切り離されて上下に開く上側蓋部１９ａ及び下側蓋部１９ｂによって閉塞されている。
【００２０】
図１及び図５に示すように、エアバッグ１６は、その内部において前側の基布１６ａと、後側の基布１６ｂとの間に設けられた規制手段としてのテザー２０ａ，２０ｂ，２０ｃにより、全体が扁平状をなすように、かつ、前後方向視で略四角形に展開膨張するようになっている。エアバッグ１６は、前席１１の背もたれ部２１に沿って展開膨張し、その背もたれ部２１と後席乗員の膝下Ｎとの間に配置される上部膨張部２２と、前席１１の座部１２からフロアＦに接するまで展開膨張し、座部１２とフロアＦとの間の空間を塞ぐ膨張部としての下部膨張部２３とを備えている。
【００２１】
図３及び図４に示すように、ケース１３の下面には、エアバッグ１６が展開膨張する方向が所定の方向となるようにガイドするとともにサポートする支持部材としてのサポートガイド２４が設けられている。図１に示すように、サポートガイド２４は、エアバッグ１６の展開膨張時に、前席１１の座部１２とフロアＦとの間において、ケース１３の開口部１７の下側から後斜め下方に延びる支持部２５を有し、この支持部２５によってエアバッグ１６の下部膨張部２３の前面２３ａを支持する。
【００２２】
次に、以上のように構成された本実施形態の作用について説明する。
車両に加わった衝撃に基づいてインフレータ１４が作動され、エアバッグ１６にガスが供給されると、エアバッグ１６はケース１３の開口部１７から飛び出し、前席１１の座部１２との間で展開膨張していく。
【００２３】
このとき、下部膨張部２３は、座部１２とフロアＦとの間の空間を塞ぐように展開膨張し、サポートガイド２４の支持部２５によって座部１２とフロアＦとの間で支持される。このため、図１に示すように、上部膨張部２２は、その展開方向が規制され、２点鎖線及び矢印で示すように、ほぼ上方に向かって展開していく。従って、上部膨張部２２は、前席１１の背もたれ部２１の背面２２ａに沿うように展開する。
【００２４】
エアバッグ１６の展開膨張が終了したとき、上部膨張部２２は、前席１１の背もたれ部２１と後席乗員の膝及び膝下Ｎとの間に配置され、下部膨張部２３は、前席１１の座部１２とフロアＦとの間の空間を塞ぐ。従って、後席乗員は、その膝及び膝下Ｎが上部膨張部２２によって保護され、その足先Ｌが下部膨張部２３によって保護される。
【００２５】
次に、以上詳述した本実施形態が有する効果を列記する。
（１） 前席１１の背もたれ部２１に沿って上方に展開する上部膨張部２２によって、後席乗員の膝及び膝下Ｎが有効に保護されるとともに、後席乗員の前方への移動を防止し、サブマリン現象を防止できる。
【００２６】
（２） 前席１１と後席１５との間の空間において展開膨張する下部膨張部２３により、足先Ｌが座部１２の下方に侵入することが防止され、その足先Ｌが有効に保護される。
【００２７】
（３） エアバッグ１６は、その内部に設けられたテザー２０ａ〜２０ｃ（規制手段）により全体が扁平状をなすように展開膨張する。このため、エアバッグ１６が後席乗員の膝下Ｎを強圧することがなく、膝下Ｎと前席１１との間を埋めるようにして、膝及び膝下Ｎを効果的に保護する。
【００２８】
（４） サポートガイド（支持部材）２４が、前席１１の座部１２とフロアＦとの間においてエアバッグ１６の下部膨張部２３の前面２３ａを支持するため、上部膨張部２２がほぼ上方に向かうように展開膨張するとともに、下部膨張部２３の前方移動を阻止する。従って、後席乗員の膝及び膝下Ｎを有効に保護できるとともに、足先Ｌの座部１２の下方へのもぐり込みを阻止して足先Ｌを有効に保護できる。
【００２９】
（５） サポートガイド２４は、前席１１の座部１２の下面に固定されたエアバッグモジュール１０のケース１３に設けられている。従って、サポートガイド２４をエアバッグモジュール１０と共に提供することができるので、車両への組み付けが容易となる。
【００３０】
次に、上記一実施形態以外の実施形態を列記する。
・ 下部膨張部２３を支持するための支持部材は、前席１１の座部１２とフロアＦとの間の空間において下部膨張部２３の前面２３ａを支持することができればよく、エアバッグモジュール１０と別体に設けられ、例えばフロアＦ上に固定されるものであってもよい。
【００３１】
・ 前記支持部材は、例えば、図６に示すように、開口部１７側で軸３０を介して上下に回動可能な支持部３１を有するサポートガイド３２であってもよい。そして、エアバッグ１６の展開膨張時に、図７に示すように、下側蓋部１９ｂと共に支持部３１が下方に回動し、図示しない規制部によってそれ以上の回動が規制された所定位置で下部膨張部２３の前面２３ａを支持する。
【００３２】
・ エアバッグ１６は全体が扁平状であればよく、テザー２０ａ〜２０ｃを用いずに、前記基布１６ａ，１６ｂ間に設けられた規制手段としてのシームによって全体を扁平状としてもよい。
【００３３】
・ 下部膨張部２３の下端が、フロアＦの上方に僅かに離れるようにしてもよい。
・ 前記一実施形態で、エアバッグモジュール１０は、前席１１の座部１２内に収容されてもよい。
【００３４】
【発明の効果】
請求項１〜請求項７に記載の発明によれば、後席乗員の膝下、主として足先を有効に保護することができる。
【図面の簡単な説明】
【図１】本実施形態の後席用エアバッグ装置を示す模式図。
【図２】後席用エアバッグ装置が設けられた前席と後席とを示す模式図。
【図３】後席用エアバッグ装置を示す模式図。
【図４】同じく模式背面図。
【図５】展開膨張したエアバッグを示す模式背面図。
【図６】他の実施形態の後席用エアバッグ装置を示す模式図。
【図７】同じくエアバッグが展開した後席用エアバッグ装置を示す模式図。
【符号の説明】
１０…後席用エアバッグ装置としてのエアバッグモジュール、１１…前席、１２…座部、１３…ケース、１５…後席、１６…（後席用）エアバッグ、２０ａ〜２０ｃ…規制手段としてのテザー、２１…（前席の）背もたれ部、２２…上部膨張部、２３…膨張部としての下部膨張部、２３ａ…（下部膨張部の）前面、２４…支持部材としてのサポートガイド、３０…同じくサポートガイド、Ｆ…フロア。[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an airbag device for a rear seat that protects a portion below a knee of a rear occupant when an impact due to a collision or the like is applied to a vehicle. In this specification, the “front seat” means a seat having another seat at the rear, and is not limited to a driver seat and a passenger seat. “Rear seat” means a seat after “front seat”.
[0002]
[Prior art]
As a conventional rear airbag device of this type, there is an airbag device that is deployed from a airbag module provided in a front seat base frame toward a rear occupant. This airbag is deployed upward along the back of the backrest behind the backrest of the front seat, and is then deployed in front of the chest or head of the rear occupant (see Patent Document 1).
[0003]
[Patent Document 1]
JP 2002-542100 A
[Problems to be solved by the invention]
By the way, when the rear seat occupant is not wearing the seat belt in the proper posture, the so-called submarine phenomenon in which the lower part of the rear seat occupant moves forward so that the lower part of the rear seat occupies at the time of a vehicle collision, The tip may enter the space between the front seat and the cabin floor.
[0005]
On the other hand, in the airbag device for a rear seat described in Patent Literature 1, the airbag deployed from the airbag module is deployed on the back side of the backrest of the front seat and in front of the chest or head of the rear passenger. Therefore, it was not possible to protect the rear passengers' knees, especially their toes.
[0006]
The present invention has been made to solve the above problems, and an object of the present invention is to provide an airbag and an airbag device capable of effectively protecting the rear passengers' knees, mainly the toes. is there.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, the invention according to claim 1 is characterized in that the invention expands and expands between a front seat portion and a floor.
[0008]
According to the first aspect of the invention, the airbag expanded and inflated between the front seat portion and the floor effectively protects the rear passengers' knees, mainly the toes.
The invention according to claim 2 is an airbag provided at a seat portion of a front seat or a lower side of the seat portion and deployed and inflated between the front seat and the rear seat, wherein the seat portion of the front seat and the floor are provided. The gist of the present invention is to provide an inflatable portion for closing a space between the two.
[0009]
According to the second aspect of the present invention, the inflatable portion that blocks the space between the front seat portion and the floor effectively protects the rear passengers' knees, mainly the toes.
The invention according to claim 3 is an airbag for a rear seat, which is provided at a seat portion of the front seat or under the seat portion and is deployed and inflated between the front seat and the rear seat, wherein the backrest of the front seat is provided. The gist of the present invention is to provide an upper inflatable portion that expands and expands along the portion, and a lower inflatable portion that closes a space between the front seat portion and the floor.
[0010]
According to the invention as set forth in claim 3, the knees and below the knees of the rear seat occupant are protected by the upper inflatable portion which expands and expands along the backrest portion of the front seat, and the space between the seat portion of the front seat and the floor. The inflated portion that blocks the space effectively protects the rear seat occupant's knees, mainly the toes.
[0011]
According to a fourth aspect of the present invention, in the third aspect, the lower inflatable portion is configured to contact the floor.
According to the invention described in claim 4, in addition to the effect of the invention described in claim 3, the space between the front seat portion and the floor can be reliably closed, and the lower inflatable portion and the floor can be closed. The upper inflatable portion can be deployed upward along the backrest portion of the front seat by using the contact with the front seat as a reaction force.
[0012]
According to a fifth aspect of the present invention, in the first aspect of the present invention, the entirety is configured to be flat.
According to the invention described in claim 5, in addition to the effect of the invention described in any one of claims 1 to 4, the entire airbag is flattened and inflated by the restricting means. Does not force the rear seat occupant under the knee, but fills the space between the lower knee and the front seat to effectively protect the lower knee.
[0013]
According to a sixth aspect of the present invention, there is provided a support for supporting a front surface of an airbag between a seat and a floor when the rear seat airbag according to any one of the first to fifth aspects is deployed and inflated. The gist is that a member is provided.
[0014]
According to the invention described in claim 6, the front surface of the airbag is supported by the support member between the seat portion of the front seat and the floor, so that the airbag according to any one of claims 1 to 5 is provided. The rear seat airbag can be deployed and inflated substantially upward. Therefore, the airbag can be deployed and inflated along the back surface of the backrest portion of the front seat, so that the rear passengers' knees can be effectively protected. In addition, the support member prevents the airbag from moving forward in the space between the front seat portion and the floor, and protects the toes more effectively.
[0015]
According to a seventh aspect of the present invention, in the invention of the sixth aspect, a case is provided in which the airbag is accommodated under the seat, and the support member is provided in the case. It is.
[0016]
According to the seventh aspect of the invention, in addition to the function of the sixth aspect of the present invention, the support member is provided in a state provided in the airbag module, so that it is easy to assemble the vehicle.
[0017]
BEST MODE FOR CARRYING OUT THE INVENTION
An embodiment of the present invention will be described below with reference to FIGS.
As shown in FIG. 2, an airbag module 10 as an airbag device is fixed to a lower surface of a seat 12 of a front seat 11 of a vehicle.
[0018]
As shown in FIG. 3, the airbag module 10 includes a case 13 fixed to the seat portion 12, an inflator 14 housed in the case 13, and a gas stored in the case 13 and supplied by the inflator 14. And an airbag 16 that is deployed and inflated between the front seat 15 and the rear seat 15.
[0019]
As shown in FIG. 4, the case 13 has an opening 17 facing the rear seat 15 side, and the folded airbag 16 is deployed to the rear seat 15 side from the opening 17. The opening 17 is closed off by tear lines 18a and 18b when the airbag 16 is deployed, and is closed by an upper lid 19a and a lower lid 19b which open up and down.
[0020]
As shown in FIGS. 1 and 5, the airbag 16 has tethers 20 a, 20 b, and 20 c as regulating means provided between a front base cloth 16 a and a rear base cloth 16 b inside the airbag 16. The whole is flat and expands and expands in a substantially rectangular shape when viewed in the front-rear direction. The airbag 16 is deployed and inflated along a backrest 21 of the front seat 11, and an upper inflation portion 22 disposed between the backrest 21 and the knee N below the rear seat occupant, and a seat 12 of the front seat 11. And a lower inflatable portion 23 as an inflatable portion that expands and inflates until it comes into contact with the floor F, and closes a space between the seat portion 12 and the floor F.
[0021]
As shown in FIGS. 3 and 4, a support guide 24 is provided on the lower surface of the case 13 as a support member that guides and supports the airbag 16 in a predetermined direction in which the airbag 16 expands and inflates. . As shown in FIG. 1, when the airbag 16 is deployed and inflated, the support guide 24 extends obliquely rearward and downward from below the opening 17 of the case 13 between the seat portion 12 of the front seat 11 and the floor F. The airbag 16 has a support portion 25 that supports the front surface 23 a of the lower inflatable portion 23 of the airbag 16.
[0022]
Next, the operation of the present embodiment configured as described above will be described.
When the inflator 14 is actuated based on the shock applied to the vehicle and gas is supplied to the airbag 16, the airbag 16 jumps out of the opening 17 of the case 13 and deploys between the airbag 16 and the seat 12 of the front seat 11. It expands.
[0023]
At this time, the lower inflatable portion 23 expands and expands so as to close the space between the seat portion 12 and the floor F, and is supported between the seat portion 12 and the floor F by the support portion 25 of the support guide 24. For this reason, as shown in FIG. 1, the expansion direction of the upper inflation part 22 is regulated, and as shown by a two-dot chain line and an arrow, it expands substantially upward. Therefore, the upper inflatable portion 22 is developed along the back surface 22 a of the backrest 21 of the front seat 11.
[0024]
When the deployment and inflation of the airbag 16 is completed, the upper inflatable portion 22 is disposed between the backrest portion 21 of the front seat 11 and the knees and below the knees N of the rear seat occupant, and the lower inflatable portion 23 of the front seat 11 The space between the seat 12 and the floor F is closed. Therefore, the rear occupant is protected by the upper inflatable portion 22 at the knee and below the knee N, and protected at the toe L by the lower inflatable portion 23.
[0025]
Next, the effects of the present embodiment described in detail above will be listed.
(1) The upper inflatable portion 22 extending upward along the backrest portion 21 of the front seat 11 effectively protects the knees and below the knees N of the rear seat occupant and prevents the rear seat occupant from moving forward. , Can prevent the submarine phenomenon.
[0026]
(2) The lower inflatable portion 23 that expands and expands in the space between the front seat 11 and the rear seat 15 prevents the foot L from entering below the seat portion 12 and effectively protects the foot L. Is done.
[0027]
(3) The airbag 16 is inflated and inflated by the tethers 20a to 20c (restriction means) provided therein so that the entire airbag 16 has a flat shape. For this reason, the airbag 16 does not strongly press the knee N below the rear seat occupant, and fills the space between the knee N and the front seat 11 to effectively protect the knee and the knee N below.
[0028]
(4) Since the support guide (support member) 24 supports the front surface 23a of the lower inflatable portion 23 of the airbag 16 between the seat portion 12 of the front seat 11 and the floor F, the upper inflatable portion 22 is raised almost upward. It expands and expands toward the front and prevents the lower inflatable portion 23 from moving forward. Therefore, the knees and below-the-knee N of the rear passenger can be effectively protected, and the toes L can be effectively protected by preventing the toes L from getting under the seat 12.
[0029]
(5) The support guide 24 is provided on the case 13 of the airbag module 10 fixed to the lower surface of the seat 12 of the front seat 11. Therefore, since the support guide 24 can be provided together with the airbag module 10, it is easy to assemble the vehicle into the vehicle.
[0030]
Next, embodiments other than the above-described one embodiment will be listed.
The support member for supporting the lower inflatable portion 23 only needs to be able to support the front surface 23a of the lower inflatable portion 23 in the space between the seat portion 12 of the front seat 11 and the floor F. It may be provided separately and fixed on the floor F, for example.
[0031]
The support member may be, for example, a support guide 32 having a support portion 31 that can rotate up and down via a shaft 30 on the opening 17 side, as shown in FIG. When the airbag 16 is deployed and inflated, as shown in FIG. 7, the support portion 31 rotates downward together with the lower lid portion 19b, and at a predetermined position where further rotation is restricted by a restriction portion (not shown). The front surface 23a of the lower expansion part 23 is supported.
[0032]
The entire airbag 16 may have a flat shape without using the tethers 20a to 20c. The airbag 16 may have a flat shape as a whole by a seam as a regulating means provided between the base fabrics 16a and 16b.
[0033]
The lower end of the lower expanding portion 23 may be slightly separated above the floor F.
In the above embodiment, the airbag module 10 may be accommodated in the seat 12 of the front seat 11.
[0034]
【The invention's effect】
According to the first to seventh aspects of the present invention, it is possible to effectively protect the rear occupant's knees, mainly the toes.
[Brief description of the drawings]
FIG. 1 is a schematic diagram showing an airbag device for a rear seat according to an embodiment.
FIG. 2 is a schematic diagram showing a front seat and a rear seat provided with a rear seat airbag device.
FIG. 3 is a schematic view showing a rear seat airbag device.
FIG. 4 is a schematic rear view of the same.
FIG. 5 is a schematic rear view showing the airbag inflated and inflated.
FIG. 6 is a schematic view showing a rear seat airbag device according to another embodiment.
FIG. 7 is a schematic diagram showing a rear seat airbag device in which the airbag is similarly deployed.
[Explanation of symbols]
10 airbag module as airbag device for rear seat, 11 front seat, 12 seat part, 13 case, 15 rear seat, 16 airbag (for rear seat), 20a-20c as regulating means Tethers, 21: backrest portion (of front seat), 22: upper inflatable portion, 23: lower inflatable portion as inflatable portion, 23a ... front surface (of lower inflatable portion), 24: support guide as support member, 30 ... Also a support guide, F ... Floor.

Claims (7)

前席の座部とフロアとの間において展開膨張することを特徴とする後席用エアバッグ。An airbag for a rear seat, which is deployed and inflated between a seat portion of a front seat and a floor. 前席の座部又は座部の下側に設けられ、前席と後席との間において展開膨張する後席用エアバッグであって、
前記前席の座部とフロアとの間の空間を塞ぐ膨張部を設けたことを特徴とする後席用エアバッグ。A rear seat airbag that is provided below a seat portion or a seat portion of a front seat and is deployed and inflated between a front seat and a rear seat,
An airbag for a rear seat, further comprising an inflatable portion for closing a space between a seat portion of the front seat and a floor. 前席の座部又は座部の下側に設けられ、前席と後席との間において展開膨張する後席用エアバッグであって、
前記前席の背もたれ部に沿って展開膨張する上部膨張部と、
前記前席の座部とフロアとの間の空間を塞ぐ下部膨張部とを設けたことを特徴とする後席用エアバッグ。A rear seat airbag that is provided below a seat portion or a seat portion of a front seat and is deployed and inflated between a front seat and a rear seat,
An upper inflatable portion that expands and inflates along the back portion of the front seat,
An airbag for a rear seat, comprising a lower inflatable portion for closing a space between a seat portion of the front seat and a floor. 前記下部膨張部がフロアに接触するように構成した請求項３に記載の後席用エアバッグ。4. The rear seat airbag according to claim 3, wherein the lower inflatable portion is configured to contact the floor. 全体が扁平状をなすように規制する規制手段を設けたことを特徴とする請求項１〜請求項４のいずれか一項に記載の後席用エアバッグ。The airbag for a rear seat according to any one of claims 1 to 4, further comprising a restricting means for restricting the entirety to have a flat shape. 請求項１〜請求項５のいずれか一項に記載の後席用エアバッグの展開膨張時に、前記前席の座部とフロアとの間においてエアバッグの前面を支持する支持部材が設けられている後席用エアバッグ装置。A support member for supporting the front surface of the airbag between the seat portion of the front seat and the floor is provided when the rear airbag according to any one of claims 1 to 5 is deployed and inflated. Rear seat airbag device. 前記座部の下部に前記エアバッグを収容するケースを設け、前記支持部材がケースに設けられていることを特徴とする請求項６に記載の後席用エアバッグ装置。The airbag device for a rear seat according to claim 6, wherein a case for housing the airbag is provided at a lower portion of the seat portion, and the support member is provided on the case.
JP2003086041A 2003-03-26 2003-03-26 Rear seat airbag device Expired - Fee Related JP4180415B2 (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007230357A (en) * 2006-02-28 2007-09-13 Nippon Plast Co Ltd Airbag and airbag device
KR100783910B1 (en) 2006-12-04 2007-12-10 현대자동차주식회사 Rear passenger's protecting air bag system
DE102009055837A1 (en) * 2009-11-26 2011-06-01 GM Global Technology Operations LLC, ( n. d. Ges. d. Staates Delaware ), Detroit Safety device for arrangement within floor space of motor vehicle for alternative protection of passenger in case of vehicle collision, has airbag formed in inflated condition such that airbag protects feet and legs of passenger
KR20120140416A (en) * 2011-06-21 2012-12-31 현대모비스 주식회사 Knee airbag apparatus
FR3082473A1 (en) * 2018-06-13 2019-12-20 Psa Automobiles Sa PROTECTIVE DEVICE FOR A VEHICLE SEAT WITH INFLATABLE BAG PROTECTING THE ANTERIOR PART OF THE PASSENGER'S LEGS
JP2021116059A (en) * 2020-01-27 2021-08-10 豊田合成株式会社 Air bag device for protection of knee

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DE102014001952B4 (en) * 2014-02-12 2019-01-24 Daimler Ag Occupant protection device for a vehicle and vehicle
KR101637204B1 (en) * 2015-09-24 2016-07-07 아우토리브 디벨롭먼트 아베 Low mounting type knee airbag module for passanger seat
US11897409B2 (en) * 2019-05-14 2024-02-13 ZF Passive Safety Systems US Inc. Apparatus and method for floor-mounted passenger lower leg protection

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007230357A (en) * 2006-02-28 2007-09-13 Nippon Plast Co Ltd Airbag and airbag device
KR100783910B1 (en) 2006-12-04 2007-12-10 현대자동차주식회사 Rear passenger's protecting air bag system
DE102009055837A1 (en) * 2009-11-26 2011-06-01 GM Global Technology Operations LLC, ( n. d. Ges. d. Staates Delaware ), Detroit Safety device for arrangement within floor space of motor vehicle for alternative protection of passenger in case of vehicle collision, has airbag formed in inflated condition such that airbag protects feet and legs of passenger
KR20120140416A (en) * 2011-06-21 2012-12-31 현대모비스 주식회사 Knee airbag apparatus
KR101720980B1 (en) * 2011-06-21 2017-03-29 현대모비스 주식회사 Knee airbag apparatus
FR3082473A1 (en) * 2018-06-13 2019-12-20 Psa Automobiles Sa PROTECTIVE DEVICE FOR A VEHICLE SEAT WITH INFLATABLE BAG PROTECTING THE ANTERIOR PART OF THE PASSENGER'S LEGS
JP2021116059A (en) * 2020-01-27 2021-08-10 豊田合成株式会社 Air bag device for protection of knee
JP7302551B2 (en) 2020-01-27 2023-07-04 豊田合成株式会社 Airbag device for knee protection

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